Three Clownfish and Sea Anemone

Three clownfish (Amphiprion ocellaris), also called, 'Nemo fish', dart in and out of a sea anemone on a tropical coral reef in the Philippines. This is a classic example of symbiosis. The clownfish are immune to the venomous tentacles of the sea anemone, which protect them from larger fish. The sea anemone benefits from scraps of food left over by the clownfish.